Home / 755,309.31-1,042,340.16-411,155.16

Finding the Fourth Proportional to 755,309.31, 1,042,340.16 and 411,155.16

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Solution

The fourth proportional to 755,309.31, 1,042,340.16 and 411,155.16 is: 567,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,309.31 : 1,042,340.16 = 411,155.16 : x
  2. Step 2: Convert to fraction form
    755,309.31/1,042,340.16 = 411,155.16/x
  3. Step 3: Cross multiply
    755,309.31x = 1,042,340.16 × 411,155.16
  4. Step 4: Simplify right side
    755,309.31x = 428,563,535,259.23
  5. Step 5: Solve for x
    x = 428,563,535,259.23/755,309.31
  6. Step 6: Final answer
    x = 567,401.37

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.